Twitter’s outages were caused by a ‘cascading bug’

The Twitter team reported on their blog Thursday evening that the day’s intermittent outages were caused by a cascading bug in one of its infrastructure components, not “a hack or our new office or Euro 2012 or GIF avatars, as some have speculated today.”

The outage, which hit in the morning and continued intermittently throughout the day, enraged users, who took to Google+ and Facebook to complain.